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2D Structure
Also known as: 8049-97-6, Melanin from sepia officinalis, 6,14-dimethyl-4,12-diazapentacyclo[8.6.1.12,5.013,17.09,18]octadeca-1(17),2,5,9(18),10,13-hexaene-7,8,15,16-tetrone, Phaeomelanins, 6,14-dimethyl-4,12-diazapentacyclo[8.6.1.1^{2,5}.0^{13,17}.0^{9,18}]octadeca-1(17),2,5,9(18),10,13-hexaene-7,8,15,16-tetrone, Gtpl5415
Molecular Formula
C18H10N2O4
Molecular Weight
318.3  g/mol
InChI Key
XUMBMVFBXHLACL-UHFFFAOYSA-N

Insoluble polymers of TYROSINE derivatives found in and causing darkness in skin (SKIN PIGMENTATION), hair, and feathers providing protection against SUNBURN induced by SUNLIGHT. CAROTENES contribute yellow and red coloration.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
6,14-dimethyl-4,12-diazapentacyclo[8.6.1.12,5.013,17.09,18]octadeca-1(17),2,5,9(18),10,13-hexaene-7,8,15,16-tetrone
2.1.2 InChI
InChI=1S/C18H10N2O4/c1-5-13-9-7(3-19-13)12-10-8(11(9)17(23)15(5)21)4-20-14(10)6(2)16(22)18(12)24/h3-4,19-20H,1-2H3
2.1.3 InChI Key
XUMBMVFBXHLACL-UHFFFAOYSA-N
2.1.4 Canonical SMILES
CC1=C2C3=C(C4=CNC5=C(C(=O)C(=O)C(=C45)C3=CN2)C)C(=O)C1=O
2.2 Synonyms
2.2.1 MeSH Synonyms

1. Allomelanins

2. Melanins

3. Phaeomelanins

2.2.2 Depositor-Supplied Synonyms

1. 8049-97-6

2. Melanin From Sepia Officinalis

3. 6,14-dimethyl-4,12-diazapentacyclo[8.6.1.12,5.013,17.09,18]octadeca-1(17),2,5,9(18),10,13-hexaene-7,8,15,16-tetrone

4. Phaeomelanins

5. 6,14-dimethyl-4,12-diazapentacyclo[8.6.1.1^{2,5}.0^{13,17}.0^{9,18}]octadeca-1(17),2,5,9(18),10,13-hexaene-7,8,15,16-tetrone

6. Gtpl5415

7. Chembl4283875

8. Chebi:89634

9. Dtxsid301001278

10. Ft-0628190

11. Q27084224

2.3 Create Date
2006-01-18
3 Chemical and Physical Properties
Molecular Weight 318.3 g/mol
Molecular Formula C18H10N2O4
XLogP3-1.2
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass318.06405680 g/mol
Monoisotopic Mass318.06405680 g/mol
Topological Polar Surface Area92.3 Ų
Heavy Atom Count24
Formal Charge0
Complexity984
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1